Mechanism for moving earth and excavated material



2Sheets-Sheet-1. Y

(No Model.)

H. A. CARSON. MEGHANISM FOR MOVING EARTH AND EXGAVATBB MATERIAL.

Patented July 3l, 18283.`

N. PETERS hunLillmgmplmr Wnshingwn. D. C4

2 Sheets-Sheet 2.

(No Model.)

H. ALCARSON. MEGHANISM POR MOVING EARTH AND EXGAVATBD MATERIAL.

No. 282,163. Patented July 31, 1883.

N. FITERS. PheoLmmgnpmr. washingmn. D. I;

portion of the Whole expense.

turning the boom to its place for lowering. From one to three boom-men are required at a single derrick for this sole purpose. The expense ofthe boom-men is saved and the loss of time preventedby the use of the incline. An incline of equal capacity with a given boom-derrick is also much more cheaply and quickly-moved than'the latter from one position to another. lVhere long trenches are excavated by means of derricks, the cost of moving them frequently forms a considerable pro- As no guys are required with the incline, the time and labor necessary for fastening and tightening these expensive and treacherous appendages are dispensed with.

It may be further said that the incline is characterized by great simplicity and compactness and small liability of getting out of order.

2o i Having described and shown the usefulness of my invention for moving and depositing excavated material, I claim- 1. One or more carriages, each combined with a hoisting-tackle or winch and running upon an inclined track, the length of said inclined track bearing approximately the same ratio to the vertical projection as the Weight required to be lifted bears to the pull necessary to lift yit When employing said Winch or tackle, in combination with a portable frame consisting of'girders, legs, crosspieces,vand braces, all substantially as set forth.

2. The tub q, combined with bail 2, the hook 3, theslide 4, and the notched brace 5, all substantially as set forth.

LN. W. GAnsoN, S. J. WILMARTH.

UNITED STATES PATENT OFFICE.V 1

HOWARD A. OARSOn,` on ROSTON,v MASSACHUSETTS.

` MECHANISM FOR MOVING EARTH AND EXCAVATED MATERIAL,

y srEcrFrcATION arming part of Letters Patent No. 282,163, dated 4July 31, 1883,

Application filed December 29, 1882. (No model.)

winch, each carriage running upon an inclined railway attached to a portable frame, and Ain 4relation thereto ashereinafter described. `Said portable frame consists of girders, cross-pieces,

and legs sobraced and connected `together as to suffer no distortion when the said carriage and its load are being moved thereon, nor when the frame itself is being moved from one position to another. Each tackle `or winch mentioned above employs one' or more ropes for hoisting a'tub iilled with excavated material, and formoving the carriage.

My invention further consists of a suitable tub for holding and dumping excavated: material, and of some subordinate details of the y mechanism generally described abovel This mechanism may be varied insize and in some subordinate 'details to meet most economi cally the requirements of different jobs of eX.- cavation. A

To enable one skilled in the art of excavation to make and use the machines, two forms will nowbe described.

Figure l, Sheet l, is a side-elevation 'of an incline7 (as the invention willnow be called) intended for excavating a sewer-trench and dumping the whole or part of the excavated material so as to reill the trench over the completed sewer. Fig. 2 is a cross-section of the same incline Onthe linem' y, but' drawn :on

a larger scale` Fig. 3 is a partial cross-section atsame point on a still larger scale, and

showing some details that could not be shown with clearness in the first or second figure. Fig. 4, Sheet 2, is a side elevation oi a carriage withtackle and'tub attached.

The carriage a is supported and runs on the track b by mea-ns of four small flanged wheels, two of which, o o, are shown. `The carriage 'a has in its interior two pulleywheels, t and u.

A rope', s, attached to the becket of the tackleblock o', is'reeved around fathen around the pulley of o, next partially around t, and then passes to the right, the whole constituting a triple purchase. If a chock or other Obstruction is'placed so as to prevent the carriage a from running downhill on the tracks b, thetub q may be lowered by slacking off the lrope s. is evident that the track b may be fixed at such an inclination that if the rope s is pulled to the right the tub g may be hoisted without causing the carriage a to start to ascend the inoline. this inclination will be somewhat greater than eighteen degrees; or it may be said that the -horizontalprojection of the inclination will be about three times the vertical projection.

The Vleast inclination cannot bel stated with 7o minute precision unless the relativefriction of the different parts is accuratelyknown. Vhen the hoisting has so far progressed that the block 1' strikes the carriage, a further pull of the rope s will` cause the carriage toascend 75 `the incline, carrying with it the tub and its load.

In Fig. 4 the tub q has a pair of trunnions (one of which, l, is shown) rigidly attached to it. On these trunnions revolves the bail 2. 'Io the 8o bail 2 is solidly. attached the hook 3, having a straight cylindrical shank. Around this shank Ais loosely fitted the slide 4. The latter is, for

convenience, made in two halves, one of which is shownin'Fig. 5, which, whenin position for 85 use, are united by fourtap-bolts. lIlhe slide l has a space init, which allows the bail 2 to pass through, and this space is great enough `to allow the slide Aa sufficient ,vertical movenient. Vhenthe bail and tub are upright, the 9o slide will drop by its own weight and the lower portion occupy the notch in the brace 5, and serve, when the whole is suspended, as a lock to prevent the tub from revolving on its trunnions and discharging its load. When it is 95 -desired to discharge the load from the tub, the

slide 4 is lifted, either by hand or automatically, so as to disengage it 'from the notch in the brace 5'.

The novelty in the just-described tub exists IOO in the notchedbrace 5 and the central locking slide, 4. Tubs turning on trunnions with other locking devices have been `in use foryears.

4The incline, Fig. 1, Sheet l, has four sets of It 6o The hoisting-tackle being threefold, 

